An Autonomous System Number (ASN) is a unique number assigned to a network in global internet routing. Every provider that participates directly on the internet has its own ASN (e.g. AS15169 for Google).

What are upstreams, peers and prefixes?

Upstreams are transit providers through which an AS reaches the internet. Peers are networks with direct traffic exchange. Prefixes are the IP address ranges the AS announces via BGP.

Where does the ASN data come from?

The data comes from the official RDAP services of the RIRs (RIPE, ARIN, etc.) and from RIPEstat (prefixes and neighbour ASNs).

ASN Lookup – Networks, Upstreams and Prefixes

AS9601

ASN

APNIC

RIR

IPv4 Prefixes

IPv6 Prefixes

AS Information

ASNAS9601

NameSHIBATA

Country

RIRAPNIC

Network Overview

IPv4 Prefixes7

IPv6 Prefixes3

Upstreams (Transit)6

Downstreams (Customers)0

BGP Peers8

AS Path (BGP neighbours)

Upstreams (Transit)

AS2519ARTERIA Networks Corporation AS2914NTT America, Inc.AS4713NTT Communications Corporation (OCN)AS6939Hurricane Electric LLC AS7529GMO NetIRD, Inc.AS9607BroadBand Tower, Inc.

AS9601SHIBATA

Downstreams (Customers)

none

Upstreams (Transit) (6)

AS2519ARTERIA Networks Corporation

AS2914NTT America, Inc.

AS4713NTT Communications Corporation (OCN)

AS6939Hurricane Electric LLC

AS7529GMO NetIRD, Inc.

AS9607BroadBand Tower, Inc.

IPv4 Prefixes (7)

219.101.64.0/20

210.229.48.0/20

58.84.240.0/21

211.12.192.0/19

114.134.32.0/19

58.84.252.0/23

58.84.250.0/23

IPv6 Prefixes (3)

2402:a800:c000::/35

2402:a800:8000::/34

2402:a800::/33

BGP Peers (8)

AS1828PacketFabric / Unitas Global

AS24482SG.GS

AS35280F5 Networks SARL

AS36236NetActuate, Inc

AS38001NewMedia Express Pte. Ltd.

AS4777Asia Pacific Network Information Centre

AS49544i3D.net B.V

AS59105Home NOC Operators Group

My IP ASN Lookup IP Lookup WHOIS DNS Lookup

What is an ASN?

An Autonomous System Number (ASN) is a unique number assigned to a network on the internet. Upstreams are the transit providers through which the AS reaches the internet. Peers are networks with which direct traffic exchange takes place. Prefixes are the IP address ranges that the AS announces to the internet. Data via RIPE NCC RDAP and RIPEstat API.